X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4efd74436a13b03d10d9cf5759e65cbbb36993d9..587ce561e1deabbfacf0d619fdd6bb3899430720:/include/wx/msw/treectrl.h diff --git a/include/wx/msw/treectrl.h b/include/wx/msw/treectrl.h index a846299906..429aa6983e 100644 --- a/include/wx/msw/treectrl.h +++ b/include/wx/msw/treectrl.h @@ -2,227 +2,561 @@ // Name: treectrl.h // Purpose: wxTreeCtrl class // Author: Julian Smart -// Modified by: +// Modified by: Vadim Zeitlin to be less MSW-specific on 10/10/98 // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// -#ifndef __TREECTRLH__ -#define __TREECTRLH__ +#ifndef _WX_TREECTRL_H_ +#define _WX_TREECTRL_H_ +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- #ifdef __GNUG__ -#pragma interface "treectrl.h" + #pragma interface "treectrl.h" #endif #include "wx/control.h" #include "wx/event.h" -#include "wx/imaglist.h" - -// WXDLLEXPORT_DATA(extern const char*) wxTreeNameStr; - -#define wxTREE_MASK_HANDLE 0x0001 -#define wxTREE_MASK_STATE 0x0002 -#define wxTREE_MASK_TEXT 0x0004 -#define wxTREE_MASK_IMAGE 0x0008 -#define wxTREE_MASK_SELECTED_IMAGE 0x0010 -#define wxTREE_MASK_CHILDREN 0x0020 -#define wxTREE_MASK_DATA 0x0040 - -#define wxTREE_STATE_BOLD 0x0001 -#define wxTREE_STATE_DROPHILITED 0x0002 -#define wxTREE_STATE_EXPANDED 0x0004 -#define wxTREE_STATE_EXPANDEDONCE 0x0008 -#define wxTREE_STATE_FOCUSED 0x0010 -#define wxTREE_STATE_SELECTED 0x0020 -#define wxTREE_STATE_CUT 0x0040 - -#define wxTREE_HITTEST_ABOVE 0x0001 // Above the client area. -#define wxTREE_HITTEST_BELOW 0x0002 // Below the client area. -#define wxTREE_HITTEST_NOWHERE 0x0004 // In the client area but below the last item. -#define wxTREE_HITTEST_ONITEMBUTTON 0x0010 // On the button associated with an item. -#define wxTREE_HITTEST_ONITEMICON 0x0020 // On the bitmap associated with an item. -#define wxTREE_HITTEST_ONITEMINDENT 0x0040 // In the indentation associated with an item. -#define wxTREE_HITTEST_ONITEMLABEL 0x0080 // On the label (string) associated with an item. -#define wxTREE_HITTEST_ONITEMRIGHT 0x0100 // In the area to the right of an item. -#define wxTREE_HITTEST_ONITEMSTATEICON 0x0200 // On the state icon for a tree view item that is in a user-defined state. -#define wxTREE_HITTEST_TOLEFT 0x0400 // To the right of the client area. -#define wxTREE_HITTEST_TORIGHT 0x0800 // To the left of the client area. - -#define wxTREE_HITTEST_ONITEM (wxTREE_HITTEST_ONITEMICON | wxTREE_HITTEST_ONITEMLABEL | wxTREE_HITTEST_ONITEMSTATEICON) - -// Flags for GetNextItem -enum { - wxTREE_NEXT_CARET, // Retrieves the currently selected item. - wxTREE_NEXT_CHILD, // Retrieves the first child item. The hItem parameter must be NULL. - wxTREE_NEXT_DROPHILITE, // Retrieves the item that is the target of a drag-and-drop operation. - wxTREE_NEXT_FIRSTVISIBLE, // Retrieves the first visible item. - wxTREE_NEXT_NEXT, // Retrieves the next sibling item. - wxTREE_NEXT_NEXTVISIBLE, // Retrieves the next visible item that follows the specified item. - wxTREE_NEXT_PARENT, // Retrieves the parent of the specified item. - wxTREE_NEXT_PREVIOUS, // Retrieves the previous sibling item. - wxTREE_NEXT_PREVIOUSVISIBLE, // Retrieves the first visible item that precedes the specified item. - wxTREE_NEXT_ROOT // Retrieves the first child item of the root item of which the specified item is a part. -}; +#include "wx/textctrl.h" + +#ifdef __GNUWIN32__ +# ifdef GetFirstChild +# undef GetFirstChild +# endif + +# ifdef GetNextSibling +# undef GetNextSibling +# endif +#endif + +// the type for "untyped" data +typedef long wxDataType; + +// fwd decl +class WXDLLEXPORT wxImageList; +struct WXDLLEXPORT wxTreeViewItem; -// Flags for ExpandItem -enum { +// a callback function used for sorting tree items, it should return -1 if the +// first item precedes the second, +1 if the second precedes the first or 0 if +// they're equivalent +class wxTreeItemData; + +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine +// where exactly the specified point is situated: + // above the client area. +static const int wxTREE_HITTEST_ABOVE = 0x0001; + // below the client area. +static const int wxTREE_HITTEST_BELOW = 0x0002; + // in the client area but below the last item. +static const int wxTREE_HITTEST_NOWHERE = 0x0004; + // on the button associated with an item. +static const int wxTREE_HITTEST_ONITEMBUTTON = 0x0010; + // on the bitmap associated with an item. +static const int wxTREE_HITTEST_ONITEMICON = 0x0020; + // in the indentation associated with an item. +static const int wxTREE_HITTEST_ONITEMINDENT = 0x0040; + // on the label (string) associated with an item. +static const int wxTREE_HITTEST_ONITEMLABEL = 0x0080; + // in the area to the right of an item. +static const int wxTREE_HITTEST_ONITEMRIGHT = 0x0100; + // on the state icon for a tree view item that is in a user-defined state. +static const int wxTREE_HITTEST_ONITEMSTATEICON = 0x0200; + // to the right of the client area. +static const int wxTREE_HITTEST_TOLEFT = 0x0400; + // to the left of the client area. +static const int wxTREE_HITTEST_TORIGHT = 0x0800; + // anywhere on the item +static const int wxTREE_HITTEST_ONITEM = wxTREE_HITTEST_ONITEMICON | + wxTREE_HITTEST_ONITEMLABEL | + wxTREE_HITTEST_ONITEMSTATEICON; + +// NB: all the following flags are for compatbility only and will be removed in the +// next versions + +// flags for deprecated `Expand(int action)' +enum +{ wxTREE_EXPAND_EXPAND, wxTREE_EXPAND_COLLAPSE, wxTREE_EXPAND_COLLAPSE_RESET, wxTREE_EXPAND_TOGGLE }; -// Flags for InsertItem -enum { - wxTREE_INSERT_LAST = -1, - wxTREE_INSERT_FIRST = -2, - wxTREE_INSERT_SORT = -3 +// flags for deprecated InsertItem() variant +#define wxTREE_INSERT_FIRST 0xFFFF0001 +#define wxTREE_INSERT_LAST 0xFFFF0002 + +// ---------------------------------------------------------------------------- +// wxTreeItemId identifies an element of the tree. In this implementation, it's +// just a trivial wrapper around Win32 HTREEITEM. It's opaque for the +// application. +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeItemId +{ +public: + // ctors + // 0 is invalid value for HTREEITEM + wxTreeItemId() { m_itemId = 0; } + + // default copy ctor/assignment operator are ok for us + + // accessors + // is this a valid tree item? + bool IsOk() const { return m_itemId != 0; } + + // conversion to/from either real (system-dependent) tree item id or + // to "long" which used to be the type for tree item ids in previous + // versions of wxWindows + + // for wxTreeCtrl usage only + wxTreeItemId(WXHTREEITEM itemId) { m_itemId = (long)itemId; } + operator WXHTREEITEM() const { return (WXHTREEITEM)m_itemId; } + + void operator=(WXHTREEITEM item) { m_itemId = (long) item; } + +protected: + long m_itemId; }; -class WXDLLEXPORT wxTreeItem: public wxObject +// ---------------------------------------------------------------------------- +// wxTreeItemData is some (arbitrary) user class associated with some item. The +// main advantage of having this class (compared to old untyped interface) is +// that wxTreeItemData's are destroyed automatically by the tree and, as this +// class has virtual dtor, it means that the memory will be automatically +// freed. OTOH, we don't just use wxObject instead of wxTreeItemData because +// the size of this class is critical: in any real application, each tree leaf +// will have wxTreeItemData associated with it and number of leaves may be +// quite big. +// +// Because the objects of this class are deleted by the tree, they should +// always be allocated on the heap! +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeItemData : private wxTreeItemId { - DECLARE_DYNAMIC_CLASS(wxTreeItem) public: - long m_mask; - long m_itemId; - long m_state; - long m_stateMask; - wxString m_text; - int m_image; - int m_selectedImage; - int m_children; - long m_data; - - wxTreeItem(void); + // default ctor/copy ctor/assignment operator are ok + + // dtor is virtual and all the items are deleted by the tree control when + // it's deleted, so you normally don't have to care about freeing memory + // allocated in your wxTreeItemData-derived class + virtual ~wxTreeItemData() { } + + // accessors: set/get the item associated with this node + void SetId(const wxTreeItemId& id) { m_itemId = id; } +#ifdef __WATCOMC__ + const wxTreeItemId GetId() const { return m_itemId; } +#else + const wxTreeItemId& GetId() const { return (wxTreeItemId&) m_itemId; } +#endif }; -class WXDLLEXPORT wxTreeCtrl: public wxControl +// ---------------------------------------------------------------------------- +// wxTreeCtrl +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeCtrl : public wxControl { - DECLARE_DYNAMIC_CLASS(wxTreeCtrl) - public: - /* - * Public interface - */ - - wxTreeCtrl(void); - - inline wxTreeCtrl(wxWindow *parent, const wxWindowID id = -1, - const wxPoint& pos = wxDefaultPosition, - const wxSize& size = wxDefaultSize, - const long style = wxTR_HAS_BUTTONS, - const wxValidator& validator = wxDefaultValidator, - const wxString& name = "wxTreeCtrl") - { - Create(parent, id, pos, size, style, validator, name); - } - ~wxTreeCtrl(void); - - bool Create(wxWindow *parent, const wxWindowID id = -1, - const wxPoint& pos = wxDefaultPosition, - const wxSize& size = wxDefaultSize, - const long style = wxTR_HAS_BUTTONS, - const wxValidator& validator = wxDefaultValidator, - const wxString& name = "wxTreeCtrl"); - - // Attributes - int GetCount(void) const ; - int GetIndent(void) const ; - void SetIndent(int indent) ; - wxImageList *GetImageList(const int which = wxIMAGE_LIST_NORMAL) const ; - void SetImageList(wxImageList *imageList, const int which = wxIMAGE_LIST_NORMAL) ; - long GetNextItem(const long item, int code) const ; - bool ItemHasChildren(const long item) const ; - long GetChild(const long item) const ; - long GetParent(const long item) const ; - long GetFirstVisibleItem(void) const ; - long GetNextVisibleItem(const long item) const ; - long GetSelection(void) const ; - long GetRootItem(void) const ; - bool GetItem(wxTreeItem& info) const ; - bool SetItem(wxTreeItem& info) ; - int GetItemState(const long item, const long stateMask) const ; - bool SetItemState(const long item, const long state, const long stateMask) ; - bool SetItemImage(const long item, const int image, const int selImage) ; - wxString GetItemText(const long item) const ; - void SetItemText(const long item, const wxString& str) ; - long GetItemData(const long item) const ; - bool SetItemData(const long item, long data) ; - bool GetItemRect(const long item, wxRectangle& rect, bool textOnly = FALSE) const; - wxTextCtrl& GetEditControl(void) const; - - // Operations - bool DeleteItem(const long item); - bool ExpandItem(const long item, const int action); - long InsertItem(const long parent, wxTreeItem& info, const long insertAfter = wxTREE_INSERT_LAST); - - // If image > -1 and selImage == -1, the same image is used for - // both selected and unselected items. - long InsertItem(const long parent, const wxString& label, const int image = -1, const int selImage = -1, const long insertAfter = wxTREE_INSERT_LAST); - bool SelectItem(const long item); - bool ScrollTo(const long item); - bool DeleteAllItems(void) ; - wxTextCtrl& Edit(const long item) ; - long HitTest(const wxPoint& point, int& flags); -// wxImageList *CreateDragImage(const long item) ; - bool SortChildren(const long item) ; - bool EnsureVisible(const long item) ; - - void Command(wxCommandEvent& event) { ProcessCommand(event); }; - - // IMPLEMENTATION - bool MSWCommand(const WXUINT param, const WXWORD id); - bool MSWNotify(const WXWPARAM wParam, const WXLPARAM lParam); +public: + // creation + // -------- + wxTreeCtrl() { Init(); } + + wxTreeCtrl(wxWindow *parent, wxWindowID id = -1, + const wxPoint& pos = wxDefaultPosition, + const wxSize& size = wxDefaultSize, + long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT, + const wxValidator& validator = wxDefaultValidator, + const wxString& name = "wxTreeCtrl") + { + Create(parent, id, pos, size, style, validator, name); + } + + virtual ~wxTreeCtrl(); + + bool Create(wxWindow *parent, wxWindowID id = -1, + const wxPoint& pos = wxDefaultPosition, + const wxSize& size = wxDefaultSize, + long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT, + const wxValidator& validator = wxDefaultValidator, + const wxString& name = "wxTreeCtrl"); + + // accessors + // --------- + + // get the total number of items in the control + size_t GetCount() const; + + // indent is the number of pixels the children are indented relative to + // the parents position. SetIndent() also redraws the control + // immediately. + unsigned int GetIndent() const; + void SetIndent(unsigned int indent); + + // spacing is the number of pixels between the start and the Text + // not implemented under wxMSW + unsigned int GetSpacing() const { return 18; } // return wxGTK default + void SetSpacing(unsigned int ) {} + + // image list: these functions allow to associate an image list with + // the control and retrieve it. Note that the control does _not_ delete + // the associated image list when it's deleted in order to allow image + // lists to be shared between different controls. + // + // The normal image list is for the icons which correspond to the + // normal tree item state (whether it is selected or not). + // Additionally, the application might choose to show a state icon + // which corresponds to an app-defined item state (for example, + // checked/unchecked) which are taken from the state image list. + wxImageList *GetImageList() const; + wxImageList *GetStateImageList() const; + + void SetImageList(wxImageList *imageList); + void SetStateImageList(wxImageList *imageList); + + // Functions to work with tree ctrl items. Unfortunately, they can _not_ be + // member functions of wxTreeItem because they must know the tree the item + // belongs to for Windows implementation and storing the pointer to + // wxTreeCtrl in each wxTreeItem is just too much waste. + + // accessors + // --------- + + // retrieve items label + wxString GetItemText(const wxTreeItemId& item) const; + // get the normal item image + int GetItemImage(const wxTreeItemId& item) const; + // get the selected item image + int GetItemSelectedImage(const wxTreeItemId& item) const; + // get the data associated with the item + wxTreeItemData *GetItemData(const wxTreeItemId& item) const; + + // modifiers + // --------- + + // set items label + void SetItemText(const wxTreeItemId& item, const wxString& text); + // set the normal item image + void SetItemImage(const wxTreeItemId& item, int image); + // set the selected item image + void SetItemSelectedImage(const wxTreeItemId& item, int image); + // associate some data with the item + void SetItemData(const wxTreeItemId& item, wxTreeItemData *data); + + // force appearance of [+] button near the item. This is useful to + // allow the user to expand the items which don't have any children now + // - but instead add them only when needed, thus minimizing memory + // usage and loading time. + void SetItemHasChildren(const wxTreeItemId& item, bool has = TRUE); + + // the item will be shown in bold + void SetItemBold(const wxTreeItemId& item, bool bold = TRUE); + + // the item will be shown with a drop highlight + void SetItemDropHighlight(const wxTreeItemId& item, bool highlight = TRUE); + + // item status inquiries + // --------------------- + + // is the item visible (it might be outside the view or not expanded)? + bool IsVisible(const wxTreeItemId& item) const; + // does the item has any children? + bool ItemHasChildren(const wxTreeItemId& item) const; + // is the item expanded (only makes sense if HasChildren())? + bool IsExpanded(const wxTreeItemId& item) const; + // is this item currently selected (the same as has focus)? + bool IsSelected(const wxTreeItemId& item) const; + // is item text in bold font? + bool IsBold(const wxTreeItemId& item) const; + + // number of children + // ------------------ + + // if 'recursively' is FALSE, only immediate children count, otherwise + // the returned number is the number of all items in this branch + size_t GetChildrenCount(const wxTreeItemId& item, bool recursively = TRUE); + + // navigation + // ---------- + + // wxTreeItemId.IsOk() will return FALSE if there is no such item + + // get the root tree item + wxTreeItemId GetRootItem() const; + + // get the item currently selected (may return NULL if no selection) + wxTreeItemId GetSelection() const; + + // get the parent of this item (may return NULL if root) + wxTreeItemId GetParent(const wxTreeItemId& item) const; + + // for this enumeration function you must pass in a "cookie" parameter + // which is opaque for the application but is necessary for the library + // to make these functions reentrant (i.e. allow more than one + // enumeration on one and the same object simultaneously). Of course, + // the "cookie" passed to GetFirstChild() and GetNextChild() should be + // the same! + + // get the first child of this item + wxTreeItemId GetFirstChild(const wxTreeItemId& item, long& _cookie) const; + // get the next child + wxTreeItemId GetNextChild(const wxTreeItemId& item, long& _cookie) const; + // get the last child of this item - this method doesn't use cookies + wxTreeItemId GetLastChild(const wxTreeItemId& item) const; + + // get the next sibling of this item + wxTreeItemId GetNextSibling(const wxTreeItemId& item) const; + // get the previous sibling + wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const; + + // get first visible item + wxTreeItemId GetFirstVisibleItem() const; + // get the next visible item: item must be visible itself! + // see IsVisible() and wxTreeCtrl::GetFirstVisibleItem() + wxTreeItemId GetNextVisible(const wxTreeItemId& item) const; + // get the previous visible item: item must be visible itself! + wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const; + + // operations + // ---------- + + // add the root node to the tree + wxTreeItemId AddRoot(const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // insert a new item in as the first child of the parent + wxTreeItemId PrependItem(const wxTreeItemId& parent, + const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // insert a new item after a given one + wxTreeItemId InsertItem(const wxTreeItemId& parent, + const wxTreeItemId& idPrevious, + const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // insert a new item in as the last child of the parent + wxTreeItemId AppendItem(const wxTreeItemId& parent, + const wxString& text, + int image = -1, int selectedImage = -1, + wxTreeItemData *data = NULL); + + // delete this item and associated data if any + void Delete(const wxTreeItemId& item); + // delete all children (but don't delete the item itself) + // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events + void DeleteChildren(const wxTreeItemId& item); + // delete all items from the tree + // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events + void DeleteAllItems(); + + // expand this item + void Expand(const wxTreeItemId& item); + // collapse the item without removing its children + void Collapse(const wxTreeItemId& item); + // collapse the item and remove all children + void CollapseAndReset(const wxTreeItemId& item); + // toggles the current state + void Toggle(const wxTreeItemId& item); + + // remove the selection from currently selected item (if any) + void Unselect(); + // select this item + void SelectItem(const wxTreeItemId& item); + // make sure this item is visible (expanding the parent item and/or + // scrolling to this item if necessary) + void EnsureVisible(const wxTreeItemId& item); + // scroll to this item (but don't expand its parent) + void ScrollTo(const wxTreeItemId& item); + + // start editing the item label: this (temporarily) replaces the item + // with a one line edit control. The item will be selected if it hadn't + // been before. textCtrlClass parameter allows you to create an edit + // control of arbitrary user-defined class deriving from wxTextCtrl. + wxTextCtrl* EditLabel(const wxTreeItemId& item, + wxClassInfo* textCtrlClass = CLASSINFO(wxTextCtrl)); + // returns the same pointer as StartEdit() if the item is being edited, + // NULL otherwise (it's assumed that no more than one item may be + // edited simultaneously) + wxTextCtrl* GetEditControl() const; + // end editing and accept or discard the changes to item label + void EndEditLabel(const wxTreeItemId& item, bool discardChanges = FALSE); + + // sorting + // this function is called to compare 2 items and should return -1, 0 + // or +1 if the first item is less than, equal to or greater than the + // second one. The base class version performs alphabetic comparaison + // of item labels (GetText) + virtual int OnCompareItems(const wxTreeItemId& item1, + const wxTreeItemId& item2); + // sort the children of this item using OnCompareItems + // + // NB: this function is not reentrant and not MT-safe (FIXME)! + void SortChildren(const wxTreeItemId& item); + + // helpers + // ------- + + // determine to which item (if any) belongs the given point (the + // coordinates specified are relative to the client area of tree ctrl) + // and fill the flags parameter with a bitmask of wxTREE_HITTEST_xxx + // constants. + // + // The first function is more portable (because easier to implement + // on other platforms), but the second one returns some extra info. + wxTreeItemId HitTest(const wxPoint& point) + { int dummy; return HitTest(point, dummy); } + wxTreeItemId HitTest(const wxPoint& point, int& flags); + + // get the bounding rectangle of the item (or of its label only) + bool GetBoundingRect(const wxTreeItemId& item, + wxRect& rect, + bool textOnly = FALSE) const; + + // deprecated + // ---------- + + // these methods are deprecated and will be removed in future versions of + // wxWindows, they're here for compatibility only, don't use them in new + // code (the comments indicate why these methods are now useless and how to + // replace them) + + // use Expand, Collapse, CollapseAndReset or Toggle + void ExpandItem(const wxTreeItemId& item, int action); + + // use AddRoot, PrependItem or AppendItem + wxTreeItemId InsertItem(const wxTreeItemId& parent, + const wxString& text, + int image = -1, int selImage = -1, + long insertAfter = wxTREE_INSERT_LAST); + + // use Set/GetImageList and Set/GetStateImageList + wxImageList *GetImageList(int) const + { return GetImageList(); } + void SetImageList(wxImageList *imageList, int) + { SetImageList(imageList); } + + // implementation + // -------------- + virtual bool MSWCommand(WXUINT param, WXWORD id); + virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result); protected: - wxTextCtrl m_textCtrl; - wxImageList *m_imageListNormal; - wxImageList *m_imageListState; + // SetImageList helper + void SetAnyImageList(wxImageList *imageList, int which); + + wxTextCtrl* m_textCtrl; // used while editing the item label + wxImageList *m_imageListNormal, // images for tree elements + *m_imageListState; // special images for app defined states + +private: + // the common part of all ctors + void Init(); + + // helper functions + inline bool DoGetItem(wxTreeViewItem *tvItem) const; + inline void DoSetItem(wxTreeViewItem *tvItem); + + inline void DoExpand(const wxTreeItemId& item, int flag); + + wxTreeItemId DoInsertItem(const wxTreeItemId& parent, + wxTreeItemId hInsertAfter, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data); + + void DeleteTextCtrl(); + + DECLARE_DYNAMIC_CLASS(wxTreeCtrl) }; -/* - wxEVT_COMMAND_TREE_BEGIN_DRAG, - wxEVT_COMMAND_TREE_BEGIN_RDRAG, - wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, - wxEVT_COMMAND_TREE_END_LABEL_EDIT, - wxEVT_COMMAND_TREE_DELETE_ITEM, - wxEVT_COMMAND_TREE_GET_INFO, - wxEVT_COMMAND_TREE_SET_INFO, - wxEVT_COMMAND_TREE_ITEM_EXPANDED, - wxEVT_COMMAND_TREE_ITEM_EXPANDING, - wxEVT_COMMAND_TREE_SEL_CHANGED, - wxEVT_COMMAND_TREE_SEL_CHANGING, - wxEVT_COMMAND_TREE_KEY_DOWN -*/ - -class WXDLLEXPORT wxTreeEvent: public wxCommandEvent +// ---------------------------------------------------------------------------- +// wxTreeEvent is a special class for all events associated with tree controls +// +// NB: note that not all accessors make sense for all events, see the event +// descriptions below +// ---------------------------------------------------------------------------- +class WXDLLEXPORT wxTreeEvent : public wxNotifyEvent { - DECLARE_DYNAMIC_CLASS(wxTreeEvent) +friend wxTreeCtrl; +public: + wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0); + + // accessors + // get the item on which the operation was performed or the newly + // selected item for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events + wxTreeItemId GetItem() const { return m_item; } - public: - wxTreeEvent(WXTYPE commandType = 0, int id = 0); + // for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously + // selected item + wxTreeItemId GetOldItem() const { return m_itemOld; } - int m_code; - wxTreeItem m_item; - long m_oldItem; - wxPoint m_pointDrag; + // the point where the mouse was when the drag operation started (for + // wxEVT_COMMAND_TREE_BEGIN_(R)DRAG events only) + wxPoint GetPoint() const { return m_pointDrag; } + + // keyboard code (for wxEVT_COMMAND_TREE_KEY_DOWN only) + int GetCode() const { return m_code; } + +private: + // @@ we could save some space by using union here + int m_code; + wxTreeItemId m_item, + m_itemOld; + wxPoint m_pointDrag; + + DECLARE_DYNAMIC_CLASS(wxTreeEvent) }; typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&); -#define EVT_TREE_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_GET_INFO(id, fn) { wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_SET_INFO(id, fn) { wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_ITEM_EXPANDED(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, -#define EVT_TREE_ITEM_EXPANDING(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, +// ---------------------------------------------------------------------------- +// macros for handling tree control events +// ---------------------------------------------------------------------------- + +// GetItem() returns the item being dragged, GetPoint() the mouse coords +#define EVT_TREE_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, +#define EVT_TREE_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, + +// GetItem() returns the itme whose label is being edited +#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, +#define EVT_TREE_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, + +// provide/update information about GetItem() item +#define EVT_TREE_GET_INFO(id, fn) { wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, +#define EVT_TREE_SET_INFO(id, fn) { wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, + +// GetItem() is the item being expanded/collapsed, the "ING" versions can use +#define EVT_TREE_ITEM_EXPANDED(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, +#define EVT_TREE_ITEM_EXPANDING(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, +#define EVT_TREE_ITEM_COLLAPSED(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, +#define EVT_TREE_ITEM_COLLAPSING(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, + +// GetOldItem() is the item which had the selection previously, GetItem() is +// the item which acquires selection #define EVT_TREE_SEL_CHANGED(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, #define EVT_TREE_SEL_CHANGING(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, + +// GetCode() returns the key code +// NB: this is the only message for which GetItem() is invalid (you may get the +// item from GetSelection()) #define EVT_TREE_KEY_DOWN(id, fn) { wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, +// GetItem() returns the item being deleted, the associated data (if any) will +// be deleted just after the return of this event handler (if any) +#define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL }, + +// GetItem() returns the item that was activated (double click, enter, space) +#define EVT_TREE_ITEM_ACTIVATED(id, fn) { wxEVT_COMMAND_TREE_ITEM_ACTIVATED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL }, + #endif - // __TREECTRLH__ + // _WX_TREECTRL_H_